rethinkdbdash hang?

gistfile1.js

#!/usr/bin/env node --harmony

var co = require('co');

var r = require('rethinkdbdash')();

co(function *() {

  'use strict';

  try {

    var TABLE = 'mktest';

    var result;

    var tables = yield r.tableList().run();
    console.log('tables:', tables);

    if (tables.indexOf(TABLE) !== -1) {
      console.log('drop', TABLE);
      result = yield r.tableDrop(TABLE).run();
      console.log('', result);
    }

    console.log('create');
    result = yield r.tableCreate(TABLE).run();
    console.log('', result);

    console.log('draining');
    yield r.getPool().drain();
    console.log('end');

  } catch (error) {
    console.log('error:', error);
    process.exit(1);
  }

})();